INDUSTRY COMPONENT

Probe Barrel (Body)

Probe Barrel (Body) is the structural housing component of a contact probe array that provides mechanical stability, alignment, and protection for internal sensing elements.

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Component Specifications

Definition
The Probe Barrel (Body) serves as the primary structural enclosure in a contact probe array system, designed to house and precisely align multiple contact probes while providing mechanical rigidity, thermal stability, and environmental protection. This component ensures consistent probe positioning during measurement operations, maintains electrical isolation between probes, and interfaces with the machine's mounting system. It typically features precision-machined surfaces, alignment features, and mounting interfaces that meet stringent dimensional tolerances for accurate metrology applications.
Working Principle
The Probe Barrel (Body) functions as a rigid mechanical structure that maintains fixed spatial relationships between multiple contact probes. During operation, it transfers minimal deflection forces from the machine interface to the probes, ensuring measurement accuracy by preventing misalignment. Its design incorporates thermal expansion compensation and vibration damping characteristics to maintain stability under varying environmental conditions.
Materials
Typically manufactured from aluminum alloys (e.g., 6061-T6, 7075-T6) for lightweight rigidity, stainless steel (e.g., 304, 316) for corrosion resistance, or ceramic composites for thermal stability. Surface treatments may include anodizing, passivation, or nickel plating for wear resistance and electrical properties.
Technical Parameters
  • Length 30-150 mm
  • Weight 50-500 g
  • Diameter 10-50 mm
  • Surface Roughness Ra ≤ 0.4 μm
  • Flatness Tolerance ≤ 0.005 mm
  • Operating Temperature -10°C to +60°C
  • Parallelism Tolerance ≤ 0.008 mm
  • Thermal Expansion Coefficient < 23 × 10⁻⁶/K
Standards
ISO 10360, ISO 230, DIN 876, DIN 2271

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Probe Barrel (Body).

probe barrel probe body contact probe array measurement component metrology housing precision alignment dimensional measurement CMM probe inspection equipment Probe Barrel (Body) Probe Barrel (Body) in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Contact Probe Array

A precisely arranged set of spring-loaded electrical probes used to establish temporary electrical connections with test points on electronic devices or printed circuit boards (PCBs) during automated testing.

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Engineering Analysis

Risks & Mitigation
  • Dimensional drift due to thermal expansion
  • Mechanical deformation under load
  • Corrosion in harsh environments
  • Wear at mounting interfaces
  • Electrical interference between probes
FMEA Triads
Trigger: Thermal expansion mismatch between materials
Failure: Measurement drift and reduced accuracy
Mitigation: Use materials with matched thermal coefficients and implement temperature compensation in measurement software
Trigger: Mechanical overloading during probe contact
Failure: Permanent deformation and misalignment
Mitigation: Design with adequate stiffness, implement force limiting in probe systems, and use overload protection mechanisms
Trigger: Corrosion in humid or chemical environments
Failure: Dimensional changes and surface degradation
Mitigation: Select corrosion-resistant materials, apply protective coatings, and implement environmental controls

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 2768-mK
Test Method
Coordinate measurement per ISO 10360, surface measurement per ISO 4287, material verification per ASTM standards

Buyer Feedback

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Frequently Asked Questions

What is the primary function of a Probe Barrel (Body)?

The primary function is to provide mechanical stability and precise alignment for multiple contact probes within an array, ensuring consistent measurement accuracy by maintaining fixed spatial relationships between probes.

What materials are commonly used for Probe Barrels?

Common materials include aluminum alloys for lightweight applications, stainless steel for corrosion resistance, and ceramic composites for superior thermal stability in precision measurement environments.

How does the Probe Barrel affect measurement accuracy?

It minimizes deflection and maintains probe alignment through rigid construction, thermal stability, and precise machining tolerances, directly impacting repeatability and accuracy in dimensional metrology.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Prism Sheet Probe Body/Housing